Art of casting piling



1934- E. D. STEINHAGEN ART OF CASTI'NG FILING Fi led Jan. 15, 1932 3 Sheets-Sheet 'l ATTORNEYeS'.

R 0 N E V m U Jan. 30, 1934. E. D. STEINHAGEN ART OF CASTING FILING 1952 3 Sheets-Sheet 2 Filed Jan. 15

1934- E. D. STEINHAGEN ART OF CASTING FILING Filed Jan. 15, 1932 3 Sheets-Sheet 3 INVENTOR. J

ATTORNEY'.

Patented Jan. 30, 1934 UNITED STATES PATENT oFF cE;

toS. M. Siesel 00., Milwaukee, Wis.,

tion of Wisconsin a corpora- Application January-15, 1932. Serial No. 586,731 5 Claims. ((11. 25 -1) This invention relates generally to improvements in the art of casting piling, and relates more specifically to an improved method of and apparatus for expeditiously casting circular piling in horizontal molds and for handling the cast piling.

A general object of the invention is to provide an improved method of and apparatus for quickly, efiectively, conveniently and relatively inexpensively casting elongated piling of circular cross-section in order to permit the casting of a maximum number of piles with a minimum amount of effort and handling of the piles and the casting equipment.

Numerous methods have been employed for casting circular piling of cementitious material, and the method, up to this time, which has met with the most usage, has included the employment of vertical molds. Obviously, Where verticalimolds are employed it is more practical to cast the piles at the location where the piles are to be used, otherwise problems are encountered relative to handling the cast piles, removing the same from the vertical molds, and providing a convenient location for a plural number of vertical molds of a considerable height.

In my co-pending application, Ser. No. 573,432, I have shown and described a mold for and method of casting elongated piling of circular cross-section horizontally.- The" present invention contemplates a novel arrangement for a yard wherein said horizontal molds are employed and certain equipment used in connection with said molds, whereby the utilization of a plurality of horizontal molds is made extremely practical and efficient.

A specific object of the invention is the arrangement of the molds, or mold supports in groups whereby group operations may be readily carried out, and the groups may be worked on progressively so that when one group is being poured, another group may be setting, and still another group may be curing and be ready for removal and transportation.

Another specific object of the invention is the arrangement of the mold supports and mold parts in groups whereby a minimum number of mold parts are required, and sets of mold parts may be interchangeably used between several groups without retarding operations.

A further specific object of the invention is to provide a novel form of casting table to simultaneously serve two adjacentmolds for receiving and facilitating distribution therefrom into the molds, the cementitious material for "the piles.

material, whether at the job or elsewhere.

While the improved method of and apparatus for casting piling has been shown in connection withthe formation of cementitious piling, it is obvious that the invention is equally applicable to the casting of kindred column of any suitable The above and other objects and advantages attainable with the present invention will be apparent from the following detailed description, and the novel features disclosed but not specifically claimed herein form the subject of co-pending application, Serial No. 573,432, filed November 6, 1931.

A clear conception of the several steps constituting the present improved method, and of an embodiment of the apparatus for commercially exploiting the method, may be had byzreferring to the drawings accompanying and forming a part of this specification, in which like reference characters designate the same or similar parts in the various views: i

Fig. 1 is a plan. view of a yard arranged with the mold groups and equipmentfor carrying out the method in accordance with the present invention;

Fig.2 is an enlarged detailed viewv taken on line 2-2 of Fig. 1; Fig. 3 is an enlarged detailed view taken on line 3-3 of Fig. 1;

Fig. 4 is an enlarged detailed view taken on line 4-4 of Fig. 1;

Fig. 5'is an enlarged plan view of the casting table utilized with the molds;

Fig. 6 is a longitudinal sectional view thereo taken on line 6-6 of Fig. 7; and

Fig. 7 is a transverse vertical sectional view taken on line 7-7 of Fig. 6.

In accordance with the present invention, it is contemplated that elongated piling of circular cross-section or kindred columns be cast in crossesectional cross-sectional cross-sectional large numbers in horizontal molds therefor, ar-

ranged in group formations in ayard located at the job, or elsewhere. A typical yard arrangement is illustrated in Fig. 1 showing three separate groups with the pilings in different conditions and the equipment arranged for the most eflicient and economical casting and hanwith the lower mold sections in Group A. In Group C completed piles rolled fromthe lower mold sections are grouped on the mold "supporting timbers and are arranged for curing and for removal and transportation.

The molds herein utilized and referred to will not be described in detail, as the same are referred to in my co-pending application, Ser. No. 573,432. Suffice it to say that said molds form longitudinally extending cavities of substantially circular form in cross-section, and each mold comprises an elongated bottom mold plate 10, a pair of curved side mold plates 11 detachably engaged with the bottom mold plate, and clamping members 12; The molds, which are designated generally by the numerals 9, are supported on elongated timbers 13 and extend transversely of the timbers, and the molds of a group are parallel and are suitably spaced apart. In the typical yard arrangement illustrated a suitable driveway 14 is provided at one end of the groups, and driveways 15 and 16 are arranged between the groups. Also, it is desirable to have driveways 17 and 18 at the ends of sides of the yardjoining with the driveway 14.

A plurality of horizontal molds, in their entireties, are arranged in spaced parallel relationship in Group A. Pairs of adjacent molds are simultaneously served by two or more casting tables 15, which are shown in detail in Figs. 2, 5, 6 and 7. Each casting table includes a box-like support 16 of rectangular cross-section which is positioned between a pair of molds and spaces and is supported by a pair of the timbers 13. The table, mounted on the support 16, includes an elongated flat plate portion 17 flanged downwardly at its outer side edge portions, as at 21. Sides 18 and ends 19 surround the plate portion 17 with the sides 18*spaced outwardly from the side edges of the plate portion to provide longitudinal discharge openings 20. The sides are tapered downwardly inwardly to cooperate with the flanges 21 and portions of the ends 19 to form discharge hoppers adapted to coincide with the top longitudinal openings 22 in the molds, as best shown in Fig. 2.. It willthus be seen from Figs. 1 and 2 that each casting table is arranged between a pair of molds and each side portion of a table'overhangs a mold and has a longitudinal opening to permit removal of cementitious material from the table into a mold on each side. Handles 23 are formed at the ends of the tables for carrying the same.

With special reference to Fig. 1, it will be noted that the completed piles 24, shown in Group C had been poured some time in advance and already have set and have been cured and have been entirely removed from their molds by being rolled laterally therefrom. These completed piles may be covered for protection by a canvas 25 stretched over supports 26 therefor laid over the piles. These completed piles may be removed from time to time as required by means of a crane 27 which lifts the piles onto a suitable truck 28, the driveway 17 permitting the crane and truck to come into close proximity to Group 0. Branch steam pipes 29 and 30, connecting respectively with a main feed pipe 31 and a return pipe 32, underlie all of said groups and fluid circulated through said pipes serves to heat the piles in the various stages and to cure the same. The flow of fluid through the pipes may, of course, be regulated to suit weatherconditions.

As illustrated, the casting operations are actually taking place at Group A, but the casting operations were performed at Group B a day or two earlier. Just prior to commencing operations at Group A, the curved mold side plates 11 were detached from the mold bottom plates 10 at Group B and were mounted on the mold bottom plates 10 of Group A. This, therefore, leaves the piles in Group B mounted only in the bottom plates 10, and the piles, in this condition in Group B will set until such timeas it is desired to roll the same entirely free of the mold bottom plates, when said piles may then be covered and be in the condition of the piles in Group C.

When the molds in Group A are set up completely and arranged as illustrated, the casting tables 15 are then positioned as previously described. Each casting table serves and overhangs a pair of adjacent molds, and two or more casting tables may be provided for each pair of molds, depending on the length of the molds. The casting tables for each pair of molds are longitudinally spaced apart. When the molds and casting tables are ready for the pouring or casting operation, a wheeled cement mixer 33 is caused to travel along the driveway 16, and cementitious material is quickly discharged from the mixer onto all of the casting tables on that side. The same mixer, or another, may travel along the driveway 18 and discharge cementitious material onto the casting tables on that side. Workmen then shovel the material from the casting tables into themolds served thereby, this work being facilitated by the table openings 20 which open directly into the molds. Following the filling of the molds the tables may be removed and work may proceed to another group and the sequence of operations is carried on in the same manner. 1

It will therefore be seen that the improved method of and apparatus for casting circular piling horizontally permits the formation of a large number of piles with the utmost eiliciency and economy. The arrangement of the molds in groups is such that the groups may be worked progressively with the minimum of equipment and with great rapidity, and by said arrangement the piles in the various groups are in various stages of development so that a supply of completed piles is insured as required. The arrangement is further such that the mold sides may be interchangeably worked with two groups and the casting tables permit filling of the molds very efiiciently with the least possible transportation and handling of material.

7 It should be understood that it is not desired to limit the present invention to the exact details of construction of the apparatus, or to the precise steps of the method, herein shown and described,

for various modifications within the scope of the claims may occur to persons skilled in the art.

What is claimed as the invention is:

1. Apparatus for casting circular piling, comprising two distinct groups of horizontally arranged mold elements, mold elements in both groups including removable bottom mold plates, a single set of curved side mold plates coacting with the bottom mold plates of one group to form complete circular sectioned molds and interchangeably coactable with the bottom mold plates of the other group, and movable casting tables mounted over the mold group having the coacting side mold plates and arranged so that each casting table serves and registers with inner portions of a pair of adjacent molds of said group to permit rapid introduction of cementitious material from the casting'table to the molds served thereby, said casting tables being movable independently of the mold elements.

2. Apparatus for casting circular piling horizontally, comprising a group of parallel, spaced, horizontal molds having upper filling openings, and a temporary receptacle for cementitious material accessible from laterally of the group of molds for filling and removably positioned between a pair of adjacent molds and simultaneously registering with the filling openings of both of the laterally adjacent molds to facilitate simultaneous introduction of cementitious material into both of the molds.

3. Apparatus for casting circular piling horizontally, comprising a group of parallel, spaced, horizontal molds having upper filling openings, and a casting table removably mounted between each pair of adjacent molds and overhanging the same and having side openings registering with the filling openings of said molds.

4. A portable casting table, comprising a supporting structure, and a horizontal table mounted thereon and projecting laterally of the supporting structure, the opposite side edge portions of said table having discharge openings therein.

5. A portable casting table, comprising a boxlike supporting structure, and a horizontal table mounted thereon projecting laterally of the supporting structure and having upstanding sides and ends, the opposite side portions of the table being open and the upstanding sides and ends cooperating therewith to form discharge hoppers.

EWALD D. STEINHAGEN. 

